Police have seized a number of weapons in a raid on an address in Wairoa.
The raid was carried out on Thursday last week after a gang-related firearms incident earlier that day.
A shotgun, ammunition and two molotov cocktails were seized in the raid on the Rata Street property.
Police had responded to multiple calls of gang disorder and reports that gunshots had been fired on Black Street earlier that day, a spokesperson said.
At least six shots were fired in total.
"This behaviour is completely unacceptable and has no place in our community," said Senior Sergeant Tony Bates, Wairoa area response manager.
"An investigation into these incidents and the items recovered during the search is ongoing."
The incident was an isolated event involving people known to each other, said Snr Sgt Bates.
Anyone with information on the incident was asked to contact police on 105 or Crimestoppers anonymously on 0800 555 111.